Live feed16:42:51·1364dINSIDERFilingvia QuantisnowSEC Form 4: Schwausch Scott covered exercise/tax liability with 3,954 shares, decreasing direct ownership by 14% to 24,898 units to cover withholding taxByQuantisnow·Wall Street's wire, on your screen.IO· Ion Geophysical CorporationEnergyOriginal source